3742778 has 8 divisors (see below), whose sum is σ = 6046068. Its totient is φ = 1727424.

The previous prime is 3742741. The next prime is 3742789. The reversal of 3742778 is 8772473.

3742778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2845969 + 896809 = 1687^2 + 947^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71951 + ... + 72002.

Almost surely, 2^3742778 is an apocalyptic number.

3742778 is a deficient number, since it is larger than the sum of its proper divisors (2303290).

3742778 is a wasteful number, since it uses less digits than its factorization.

3742778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143968.

The product of its digits is 65856, while the sum is 38.

The square root of 3742778 is about 1934.6260620595. The cubic root of 3742778 is about 155.2618259450.

The spelling of 3742778 in words is "three million, seven hundred forty-two thousand, seven hundred seventy-eight".